A Firebomber could be anyone in a crowd

Description:

Official poster issued by the NI Government. 'A Firebomber could be anyone in a crowd - if you see anything suspicious - dial 999.' Printed black, white and red, showing a crowd of people with one highlighted in red. This poster was produced in 1971 to draw attention to the danger of incendiary devices. In 1977, the year in which most incendiaries were used, the police recorded that more than six hundred had exploded or been defused.